As far as I know, you can completely erase this chip even if the copy protection bits are set. Obviously you can not read or write code (or unset the copy protection bits) without a bulk (complete) erase first. You can do it in IcProg by using the "Erase All" command. John Spiliotopoulos/Greece ----- Original Message ----- From: "Claudio Martin" To: Sent: Monday, March 08, 2004 9:58 PM Subject: Erase Code protected PIC Hi everybody: I need your help in this issue, i have a 16f874, i need to erase, it4s code protected. Can i do it using ICPROG? Is ther any other way? Thanks in advance -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics